i need to generate a formula

In other words the known(input) value increase in .01 increments, then the output value decreases by .01.
What's the formula that may be applied for this?
Thanks and kudos to whomever can help with this.

In other words the known(input) value increase in .01 increments, then the output value decreases by .01.
What's the formula that may be applied for this?
Thanks and kudos to whomever can help with this.